CN105099954A - Transformer substation process layer message networking-sharing port-sharing transmission system - Google Patents
Transformer substation process layer message networking-sharing port-sharing transmission system Download PDFInfo
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- CN105099954A CN105099954A CN201410742620.2A CN201410742620A CN105099954A CN 105099954 A CN105099954 A CN 105099954A CN 201410742620 A CN201410742620 A CN 201410742620A CN 105099954 A CN105099954 A CN 105099954A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
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- Data Exchanges In Wide-Area Networks (AREA)
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Abstract
The invention provides a transformer substation process layer message networking-sharing port-sharing transmission system. The system comprises a process layer network, wherein a spacing layer and a process layer are connected through edge pretreatment equipment. The process layer network comprises a switch based on an all-optical switching technology. According to the invention, the all-optical switching technology is adopted, and by using the edge pretreatment equipment, networking-sharing port-sharing transmission is realized for GOOSE and SMV messages of the transformer substation process layer, so that multiple times of optical-electric conversion on each node of the communication network are avoided.
Description
Technical field
The present invention relates to a kind of method of intelligent substation station communication networking technology area, specifically relate to a kind of Substation process-level message common network port transmission system altogether.
Background technology
At present, the network switching equipment in transformer station is based on Ethernet core exchange chip, employing " Store and forword " the network exchange pattern of the process signal of telecommunication, specifically: the network switching equipment needs first light signal to be carried out opto-electronic conversion, Ethernet core exchange chip is sent into after being converted to the signal of telecommunication, the data pack buffer that input port arrives first gets up and checks by exchange chip, after determining that bag is correct, take out destination address, found the output port address wanting to send by look-up table, then this bag is sent.Light-electric the conversion of multiple link can cause larger conversion time delay, traffic affecting real-time.Simultaneously transformer station's electromagnetic environment is severe, and the network switching equipment of traditional process signal of telecommunication is subject to complex electromagnetic environment interference, causes the data-bag lost even serious consequence such as equipment fault, needs the cost costed a lot of money for electromagnetic protection.
Therefore; in order to ensure that protective device can reflect electric power system fault and abnormal operation correctly, fast; and reliably excise fault element; ensure the reliability service of intelligent substation; current ordinary circumstance equipment all has independently SMV interface and GOOSE interface; process layer adopts SMV net and GOOSE net physical isolation to form multiple Physical Network simultaneously, or ensures that SMV and GOOSE business is interference-free by the method for message priority and division VLAN.
But said structure needs the interface providing SMV message and GOOSE message respectively, carry out its respective conversion, improve the complexity of system.
Therefore, need to provide a kind of Substation process-level message common network port transmission system altogether.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the invention provides a kind of Substation process-level message common network port transmission system altogether.
Realizing the solution that above-mentioned purpose adopts is:
A kind of Substation process-level message common network port transmission system altogether, its improvements are: described system comprises the process-level network being connected wall and process layer by edge pre-processing device; Described process-level network comprises the All-optical switching machine based on all-optical switching technique.
Further, described edge pre-processing device wraps for the treatment of light grouping and dispatches wavelength.
Further, described edge pre-processing device comprises the first photoelectric/electro-optical conversion module, message pretreatment module, the second photoelectric/electro-optical conversion module and the recovery use/optical demultiplexer that connect successively;
The equipment of described first photoelectric/electro-optical conversion module connection procedure layer or wall, described recovery use/optical demultiplexer connection procedure layer network.
Further, described first photoelectric/electro-optical conversion module comprises photoelectric conversion module one and electrooptic conversion module one;
Described second photoelectric/electro-optical conversion module comprises photoelectric conversion module two and electrooptic conversion module two;
Described recovery with/optical demultiplexer comprise recovery with and optical demultiplexer.
Further, the photoelectric conversion module one of described edge pre-processing device receives the service message of described wall or process layer;
Described message pretreatment module extracts heading according to described service message, traffic identification is carried out according to described heading, determine that the destination address of described service message, type of message, wavelength and bag are long, according to described destination address, type of message and bag long-living become optical packet head;
Described optical packet head, according to described wavelength determination output port, is sent to corresponding electrooptic conversion module two by described message pretreatment module;
Described electrooptic conversion module two forms light grouping bag according to described optical packet head and described service message, and the described light grouping bag sent by different wave length is sent to described optical multiplexer;
Described light grouping bag is sent to the All-optical switching machine of described process layer by described optical multiplexer.
Further, when described edge pre-processing device receives the service message of described process-level network, described edge pre-processing device is oppositely decomposed by described optical demultiplexer, photoelectric conversion module two, message pretreatment module and electrooptic conversion module one successively.
Further, the light grouping bag that the All-optical switching machine that described optical demultiplexer receives described process layer sends;
Described photoelectric conversion module two receives the described light grouping bag of described optical demultiplexer transmission by different wave length, and described light grouping bag is decomposed into optical packet head and service message;
Described message pretreatment module receives described optical packet head, according to the wavelength chooses output port in described optical packet head, deletes optical packet head, described service message is sent to described electrooptic conversion module one;
Described electrooptic conversion module one receives described service message, is sent to the equipment of described wall or process layer by distinct interface.
Further, described message pretreatment module is realized by FPGA.
Further, described All-optical switching machine comprises control unit and the optical demultiplexer connected successively, Optical buffer unit, optical switching matrix and optical multiplexer;
Light grouping bag on different wave length is sent into different light switched circuits by described demodulation multiplexer, and be sent to optical switching matrix through Optical buffer unit, described optical switching matrix realizes light function of exchange; Light grouping bag after exchange exports multiplexing on optical fiber by described optical multiplexer;
Described control unit extracts optical packet head according to light grouping bag, and controls described Optical buffer unit and described optical switching matrix.
Further, described type of message comprises GOOSE message and SMV message;
GOOSE message and the transmission of SMV message common network is realized and complete physical isolation by described edge pretreatment module and described All-optical switching machine.
Compared with prior art, the present invention has following beneficial effect:
1, system provided by the invention adopts all-optical switching technique, achieves Substation process-level GOOSE and SMV message common network port transmission altogether by edge pre-processing device, avoids the repeatedly light-electricity conversion on each node of communication network.
2, in system provided by the invention, edge pre-processing device is without the need to receiving complete packet, it is long that the header that only need receive service message can extract destination address, type of message and bag, generates optical packet head, thus the time delay of service message can not be long different and shake because wrapping.
3, in system provided by the invention, All-optical switching machine only need receive optical packet head can extract destination address and bag length, controls switching matrix, completes light grouping and wraps straight-through exchange, has high real-time and also because wrapping long difference, delay variation can not occur simultaneously.
4, system provided by the invention has high real-time, high reliability, low-power consumption and business physical isolation function, can provide technical support, having actual application value for building integration high speed communication network scheme in intelligent substation station.
5, system provided by the invention can solve the problems such as bandwidth, real-time, reliability, meet the business demand of electric power data communication network, effectively instruct electric power data communication network Large scale construction and performance boost, ensure that electric power data communication network builds healthy and sustainable development.
6, system provided by the invention also can be used for other industrial control fields such as petrochemical industry, iron and steel, provides the Secure isolation function of the business datums such as data acquisition, status monitoring, Systematical control, promotes industrial control network performance, has good industrialization prospect.
7, system provided by the invention can be applied in the application scenario that data center, high-performance calculation, high frequency transaction etc. rely on large bandwidth, low delay, highly reliable data communication network to support, give full play to All-optical switching high-performance, highly reliable technical advantage, remarkable in economical benefits.
Accompanying drawing explanation
Fig. 1 is Substation process-level message common network port transmission system construction drawing altogether in the present embodiment;
Fig. 2 is preprocessing function block diagram in edge in the present embodiment;
Fig. 3 is that in the present embodiment, All-optical switching machine exchanges flow chart.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, Fig. 1 is Substation process-level message common network port transmission system construction drawing altogether in the present embodiment; Described system comprises the process-level network being connected wall and process layer by edge pre-processing device; Described process-level network comprises the All-optical switching machine based on all-optical switching technique.
Process-level network, by edge pre-processing device process layer, realizes the transmission of GOOSE message and the common mouth of SMV message common network by edge pre-processing device and All-optical switching machine.
All-optical switching, refer to light signal in a communication network without any light-electricity conversion, directly exchange to different outputs by input, repeatedly light-electricity the conversion on each node of communication network can be avoided, " electronic bottleneck " phenomenon that communication network is no longer the limited by defect such as bandwidth sum power consumption that electronic device itself exists causes, significantly promote communication network bandwidth and real-time, reduce network equipment power consumption; Meanwhile, all-optical switching technique has natural anti-electromagnetic interference capability, can reliability application and the severe field of power communication of electromagnetic environment.
As shown in Figure 2, Fig. 2 is preprocessing function block diagram in edge in the present embodiment; Edge pre-processing device divides into groups for the treatment of light and dispatches wavelength.
Edge pre-processing device comprises the first photoelectric/electro-optical conversion module, message pretreatment module, the second photoelectric/electro-optical conversion module and the recovery use/optical demultiplexer that connect successively.
Packet (i.e. service message), for the packet header deletion completing type of message identification, optical packet head generation, optical packet head extraction, output port selection and the light grouping received in network wrapped, is only sent to equipment etc. by described message pretreatment module.
Described message pretreatment module realizes the identification of message and the assembling of light grouping by FPGA and unpacks, and makes the time delay of message in equipment minimum.
The equipment of described first photoelectric/electro-optical conversion module connection procedure layer or wall, described recovery use/optical demultiplexer connection procedure layer network.
The first photoelectric/electro-optical conversion module connected successively, message pretreatment module, the second photoelectric/electro-optical conversion module and recovery can carry out two-way signaling process by/optical demultiplexer.
Described first photoelectric/electro-optical conversion module, the second photoelectric/electro-optical conversion module include photoelectric conversion module and electrooptic conversion module.Different modules is adopted according to different switching demand.
Wherein, the first photoelectric/electro-optical conversion module comprises photoelectric conversion module one and electrooptic conversion module one.Described second photoelectric/electro-optical conversion module comprises photoelectric conversion module two and electrooptic conversion module two.
Described recovery with/optical demultiplexer comprise recovery with and optical demultiplexer, select different devices according to different demands.
Preliminary treatment concrete processing procedure in edge is as follows:
When described edge pre-processing device receives the service message of described wall and process layer, receive described service message by described photoelectric conversion module one;
Described message pretreatment module extracts heading according to described service message, traffic identification is carried out according to heading, determine that the destination address of described service message, type of message, wavelength and bag are long, according to described destination address, type of message and bag long-living become optical packet head;
The output port that message pretreatment module is different according to wavelength chooses, namely selects to be input to different electrooptic conversion modules two;
Described smooth modular converter two forms light grouping bag according to the optical packet head received and service message;
Light grouping wraps on respective wavelength and is sent to recovery use/optical demultiplexer by different electro-optic conversion moulds two, and described light grouping is wrapped in the All-optical switching machine that different wave length is sent to described process layer by the optical multiplexer in recovery use/optical demultiplexer.
When described edge pre-processing device receives the service message of described process-level network, according to described recovery with/optical demultiplexer, the second photoelectric/electro-optical conversion module, message pretreatment module and the first photoelectric/electro-optical conversion module complete reverse decomposition.
When described edge pre-processing device receives the service message of described process-level network, complete reverse decomposition, by Packet Generation to equipment according to described optical demultiplexer, the second photoelectric conversion module, message pretreatment module and the first electrooptic conversion module.
Specifically comprise the following steps:
The light grouping bag that the All-optical switching machine that described optical demultiplexer receives described process layer sends;
Described photoelectric conversion module two receives the described light grouping bag of described optical demultiplexer transmission by different wave length, and described light grouping bag is decomposed into optical packet head and service message;
Described message pretreatment module receives described optical packet head, according to the wavelength chooses output port in described optical packet head, deletes optical packet head, described service message is sent to described electrooptic conversion module one;
Described electrooptic conversion module one receives described service message, is sent to the equipment of described wall or process layer by distinct interface.
As shown in Figure 3, Fig. 3 is that in the present embodiment, All-optical switching machine exchanges flow chart; Described All-optical switching machine comprises control unit and the optical demultiplexer be connected successively, light switched circuit, Optical buffer unit, optical switching matrix and optical multiplexer; Described control unit extracts optical packet head from the light grouping bag described smooth switched circuit.
Control unit carries out analyzing and processing to optical packet head, determine each destination interface divided into groups, the time of advent, priority level and by the time needed for node, control conflict and race problem that Optical buffer unit caches message solves message, control optical cross-connect matrix is set up light path and is completed function of exchange.
Light grouping bag on different wave length is sent into different light switched circuits by described demodulation multiplexer, controls described optical switching matrix, realize light function of exchange through Optical buffer unit according to optical packet head; Light grouping bag after exchange exports multiplexing on light by optical multiplexer.
GOOSE message and the transmission of SMV message common network is realized and complete physical isolation by described edge pretreatment module and described All-optical switching machine.
Such as, in Fig. 2, SMV is transmitted by wavelength X 2 by wavelength X 1, GOOSE, and λ 3, as alternate channel, achieves the common port transmission of GOOSE and SMV message.
Finally should be noted that: above embodiment is only for illustration of the technical scheme of the application but not the restriction to its protection range; although with reference to above-described embodiment to present application has been detailed description; those of ordinary skill in the field are to be understood that: those skilled in the art still can carry out all changes, amendment or equivalent replacement to the embodiment of application after reading the application; but these change, revise or be equal to replacement, all applying within the claims awaited the reply.
Claims (10)
1. a Substation process-level message common network port transmission system altogether, is characterized in that: described system comprises the process-level network being connected wall and process layer by edge pre-processing device; Described process-level network comprises the All-optical switching machine based on all-optical switching technique.
2. a kind of Substation process-level message common network as claimed in claim 1 port transmission system altogether, is characterized in that: described edge pre-processing device wraps for the treatment of light grouping and dispatches wavelength.
3. a kind of Substation process-level message common network as claimed in claim 2 port transmission system altogether, is characterized in that: described edge pre-processing device comprises the first photoelectric/electro-optical conversion module, message pretreatment module, the second photoelectric/electro-optical conversion module and the recovery use/optical demultiplexer that connect successively;
The equipment of described first photoelectric/electro-optical conversion module connection procedure layer or wall, described recovery use/optical demultiplexer connection procedure layer network.
4. a kind of Substation process-level message common network as claimed in claim 2 port transmission system altogether, is characterized in that: described first photoelectric/electro-optical conversion module comprises photoelectric conversion module one and electrooptic conversion module one;
Described second photoelectric/electro-optical conversion module comprises photoelectric conversion module two and electrooptic conversion module two;
Described recovery with/optical demultiplexer comprise recovery with and optical demultiplexer.
5. a kind of Substation process-level message common network as claimed in claim 4 port transmission system altogether, is characterized in that: the photoelectric conversion module one of described edge pre-processing device receives the service message of described wall or process layer;
Described message pretreatment module extracts heading according to described service message, traffic identification is carried out according to described heading, determine that the destination address of described service message, type of message, wavelength and bag are long, according to described destination address, type of message and bag long-living become optical packet head;
Described optical packet head, according to described wavelength determination output port, is sent to corresponding electrooptic conversion module two by described message pretreatment module;
Described electrooptic conversion module two forms light grouping bag according to described optical packet head and described service message, and the described light grouping bag sent by different wave length is sent to described optical multiplexer;
Described light grouping bag is sent to the All-optical switching machine of described process layer by described optical multiplexer.
6. a kind of Substation process-level message common network as claimed in claim 4 port transmission system altogether, it is characterized in that: when described edge pre-processing device receives the service message of described process-level network, described edge pre-processing device is oppositely decomposed by described optical demultiplexer, photoelectric conversion module two, message pretreatment module and electrooptic conversion module one successively.
7. a kind of Substation process-level message common network as claimed in claim 6 port transmission system altogether, is characterized in that: the light grouping bag that the All-optical switching machine that described optical demultiplexer receives described process layer sends;
Described photoelectric conversion module two receives the described light grouping bag of described optical demultiplexer transmission by different wave length, and described light grouping bag is decomposed into optical packet head and service message;
Described message pretreatment module receives described optical packet head, according to the wavelength chooses output port in described optical packet head, deletes optical packet head, described service message is sent to described electrooptic conversion module one;
Described electrooptic conversion module one receives described service message, is sent to the equipment of described wall or process layer by distinct interface.
8. a kind of Substation process-level message common network as claimed in claim 4 port transmission system altogether, is characterized in that: described message pretreatment module is realized by FPGA.
9. a kind of Substation process-level message common network as claimed in claim 2 port transmission system altogether, is characterized in that: described All-optical switching machine comprises control unit and the optical demultiplexer connected successively, Optical buffer unit, optical switching matrix and optical multiplexer;
Light grouping bag on different wave length is sent into different light switched circuits by described demodulation multiplexer, and be sent to optical switching matrix through Optical buffer unit, described optical switching matrix realizes light function of exchange; Light grouping bag after exchange exports multiplexing on optical fiber by described optical multiplexer;
Described control unit extracts optical packet head according to light grouping bag, and controls described Optical buffer unit and described optical switching matrix.
10. a kind of Substation process-level message common network as claimed in claim 4 port transmission system altogether, is characterized in that: described type of message comprises GOOSE message and SMV message;
GOOSE message and the transmission of SMV message common network is realized and complete physical isolation by described edge pretreatment module and described All-optical switching machine.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742620.2A CN105099954B (en) | 2014-12-05 | 2014-12-05 | A kind of Substation process-level message common network is total to port transmission system |
| PCT/CN2015/093885 WO2016086750A1 (en) | 2014-12-05 | 2015-11-05 | Transformer substation process layer message network-sharing port-sharing transmission system |
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| CN201410742620.2A CN105099954B (en) | 2014-12-05 | 2014-12-05 | A kind of Substation process-level message common network is total to port transmission system |
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| CN105099954B CN105099954B (en) | 2018-09-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105679007A (en) * | 2015-12-30 | 2016-06-15 | 中国南方电网有限责任公司电网技术研究中心 | Transformer substation data transmission method and device |
| CN107015332A (en) * | 2017-05-26 | 2017-08-04 | 国家电网公司 | Optical cable connecting device between intelligent substation high-pressure side process layer and wall |
| CN110366841A (en) * | 2017-03-06 | 2019-10-22 | 三菱电机株式会社 | Transmission device, transfer approach and conveyer system |
| CN115347680A (en) * | 2022-10-18 | 2022-11-15 | 国网湖北省电力有限公司电力科学研究院 | Remote power failure monitoring system and method based on time sensitive network |
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| CN109861398A (en) * | 2019-04-04 | 2019-06-07 | 南京电研电力自动化股份有限公司 | A kind of the electrical power services device and its network system realization of digital transformer substation |
| CN109904931A (en) * | 2019-04-04 | 2019-06-18 | 南京电研电力自动化股份有限公司 | The process layer configuration method of intelligent substation electrical power services device and its system |
| CN112291032A (en) * | 2020-09-08 | 2021-01-29 | 许继集团有限公司 | Electric power service isolation transmission device and method based on optical wavelength and optical packet switching |
| CN113645587B (en) * | 2021-10-12 | 2022-02-11 | 北京智盟信通科技有限公司 | Transformer substation comprehensive monitoring analysis method and system based on edge Internet of things agent |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016086750A1 (en) | 2016-06-09 |
| CN105099954B (en) | 2018-09-14 |
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